OF THE TONGA OR FRIENDLY ISLANDS. 179 
CuUCURBITACER. 
Luffa cylindrica, Roem., 3. insularum, Cogn. (L. insularum, 
A. Gray).— Barclay; Moseley. 
Commonly cultivated throughout the tropics. 
The form L. insularum extends from New Caledonia and Fiji 
to the Society Islands, and it also occurs in Malaya and 
Australia. 
Momordica Charantia, Linn.— Moseley. 
Fiji and Society Islands. Commonly cultivated and natura- 
lized in tropical countries and probably indigenous only in tropical 
Africa. 
Melothria Grayana, Cogn.— Lister. 
Fiji, Samoa, and Society Islands. 
Cucumis Melo, Linn. (Cucumis pubescens, Willd.) U.S. Evpl. 
Exped. 
New Caledonia and Fiji eastward to the Marquesas and Sand- 
wich Islands. Tropical Asia and Africa, and naturalized in other 
countries, including Polynesia. 
FIcoIDEs. 
Tetragonia expansa, Murr.—Lister. 
Japan, Australia, Tasmania, New Zealand, and South America. 
Sesuvium Portulacastrum, Linn. (Trianthema polyandra, 
Blume).—Forster ; Lister. 
Society and Sandwich Islands. Common, especially on sandy 
sea-shores, throughout tropical and subtropical regions. 
UMBELLIFER. 
Hydrocotyle asiatica, Linn.—Barelay ; Lister. 
Fiji, Samoa, and Sandwich Islands, and tropical and subtropical 
regions in both hemispheres. 
Apium leptophyllum, F. Muell.—Cartwright. 
East Australia, tropical South and Central America, W. Indies, 
and southern part of North America. A common weed of culti- 
vation in warm countries. 
